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The entropy change in the conversion of a solid into its different states

The entropy change in the conversion of a solid into its different states can be obtained by using

Options

(a) The third law of thermodynamics
(b) Equation ΔS = ₀∫ Cp/T dt
(c) Equation ΔS = ΔHf/Tf
(d) Equation ΔG = ΔH – TΔS

Correct Answer:

The third law of thermodynamics

Explanation:

Third law of thermodynamics has been utilised in calculating absolute entropies of solids, liquids and gases at different temperature and also in evaluating entropy changes of chemical reaction and other processes.

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